n.
A groove in the lateral wall of the middle meatus of the nasal cavity, into which the maxillary sinus, the frontonasal duct, and the middle ethmoid cells open.
hiatus semilunaris
| Medical Dictionary: hiatus sem·i·lu·nar·is |
n.
| 5min Related Video: hiatus semilunaris |
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 | Ethmoidal infundibulum |
| Semilunar hiatus |
| Ethmoid bulla |
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 | Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Read more |
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